Modern status of the Tien-Shan cosmic ray station

Ryabov, V. A.; Almenova, A.M.; Antonova, V. P.; Beisembayev, R.U.; Bezshapov, S.P.; Borisov, A. S.; Chubenko, A. P.; Dalkarov, O. D.; Gurevich, A. V.; Karashtin, A. N.; Kryakynova, O.N.; Mitko, G.G.; Mukhamedshin, R. A.; Mukhashev, A.M.; Nam, R.A.; Nikolaevsky, N.F.; Pavlyuchenko, V. P.; Piscal, V. V.; Ptitsyn, M.O.; Puchkov, V. S.; Saduev, N.O.; Sadykov, T. Kh.; Салихов, Н. М.; Shaulov, S.B.; Shepetov, A. L.; Shlyugaev, Yu. V.; Stepanov, A. V.; Thu, W.M.; Vildanova, L. I.; Vildanova, Marina; Zastrozhnova, N.N.; Zukhov, V.V.; Zybin, K. P.

doi:10.1051/epjconf/201714512001

Cited by 4 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An alternative way to study the muon component of cosmic rays at the Tien Shan mountain station is using an underground neutron detector which was incorporated into experimental complex at the modern stage of its development [14,15,22]. The internal arrangement scheme of the underground detector is presented in Fig.…”

Section: The Underground Neutron Detector and Its Use For Registratio...mentioning

confidence: 99%

“…Due to the unique penetrative capability of muons many still obscure problems of the physics of cosmic rays can be elucidated by the study of their muonic component. It is known that at first interaction of a high energy cosmic ray particle which generally takes place somewhere at a height of (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) km in the Earth's atmosphere, a multitude of pions and kaons is born whose further fate determines development of a subsequent extensive air shower (EAS). Secondary mesons can either collide in their Email address: ashep@tien-shan.org (A. L. Shepetov) turn with atmosphere nuclei giving rise to the next generation of nuclear-active particles, or to decay by one of the weak interaction channels.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The rise of muon content in extensive air showers after the 3 PeV knee of the primary cosmic ray spectrum according to data of the Tien Shan mountain installation

Shepetov,

Shaulov,

Likiy

et al. 2021

Preprint

View full text Add to dashboard Cite

We put together the experimental results on muon component of extensive air showers (EAS) which were gained with various techniques at the detector complex of the Tien Shan mountain station. According to this comparison, the problem of the EAS muon content in the range of primary cosmic ray energies (1 − 100) PeV seems to be more complicated than it was usually supposed. Generally, from the models of nuclear interaction it follows that the EAS which have produced gamma-hadron families in the Tien Shan X-ray emulsion chamber did preferably originate from interaction of the light cosmic ray nuclei, such that their muon abundance must be ∼1.5 times below an average calculated over all showers. In contrary, the experimental muon counts in the EAS with families demonstrate a (1.5 − 2)-fold excess above the average, and this difference starts to be observable in the showers with the energy above the 3 PeV knee of the primary cosmic ray spectrum. Later on, the rise of muon production in EAS after the knee was confirmed at Tien Shan by another experiment on detection of the neutrons stemmed from interaction of cosmic ray muons. Thus, the results obtained by the two completely different methods do mutually agree with each other but contradict to the common models of hadron interaction.

show abstract

Section: The Underground Neutron Detector and Its Use For Registratio...mentioning

confidence: 99%